Detachable grain-drill shoe.



NIL-643,445. Patented Feb. l3, I900.

D. J. 'AMES.

DETAGHABLE mum n'mu. suns,

(Application flled Sept. 7, 1899.)

(No Model.)

@ INVENTOR.

, 7 DAVID JACK$ON Ac ua'a H13 AT To AN 5V8 NI'IED STATES PATENT FFICE.

DAVID JACKSON AMES, OF OWATONNA, MINNESOTA, ASSIGNOR TO THE OVVATONNA MANUFACTURING COMPANY, OF SAME PLACE.

DETACHABLE GRAIN-DRILL SHOE.

SPECIFICATION forming part of Letters Patent No. 643,445, dated February 13, 1900.

Application filed September 7, 1899. Serial No. 729,703. (No model.)

To all whom it may concern.-

Be it known that I, DAVID JACKSON AMES, of Owatonna, Steele county, Minnesota, have invented .certain new and useful Improvements in Detachable Grain-Drill Shoes, of which the following is a specification.

The invention relates to grain-drills; and the primary object of the invention is to pro- Vide means whereby the drill-shoe may be readily separated from its shank to permit the shoe to be sharpened or in case of breakage to permit a new shoe to be substituted therefor.

The invention consists generally in providing improved means whereby the drillshoe may be easily and securely attached to its shank and to the drag-bars and as readily separated therefrom.

Further, the invention consists in various constructions and combinations, all as hereinafter described, and particularly pointed out in the claims. I In the accompanying drawings, forming part of this specification, Figure 1 is a side elevation of a grain-drill shoe embodying my invention. a sectional view showing the interior of the hollow shank and in detail the mechanism for securing the shoe to said shank.

In the drawings, 2'represents the hollow shank of the shoe, through which the grain is dropped by the feeding mechanism of the drill. This shank is preferably of cast metal and may be of any preferred size and design. At its lower end the shank is provided with a projection or extension 3, to the upper part of which the end of the drag-bard is secured by a bolt, rivet, or other suitable means. The dragbar consists, preferably, of two members with a space between them and preferably curved near the shoe-shank to fit the curved upper edge of the shoe 5, which is of the usual form, having a recess to receive said projection 3. To hold the shoe in position over the projection 3, I prefer to provide a block 6 within the recess of the shoe, near its upper edge, held in position by a pin 7 or other suitable means and having at one end a rounded surface to fit within a socket or recess 8 in the forward edge of the projection 3. The rear portion of the shoe Fig. 2 is a plan view. Fig. 3 is is thus supported by said projection and the lower portion of the shank, and said projec= tion also bears the strain incident to dragging the shoe across the field and at the same time acts as a guide for the rear end of the shoe, preventing any lateral or twisting movement of the same. I prefer to support the forward end of the shoe by providing a lug 9- thereon adapted to fit into the space between the members of the drag-bar and detachably secured therein by a bolt 10, passing through said members and through said lug. It is obvious that when the block 6 rests within the socket in the projection 3 and the lug 9 is secured to the drag-bar, as shown in Fig. 3, the shoe will be securelylocked to its shank until such time as the bolt 10 is removed,'when the shoe may be moved forward to the position indicated by dotted lines in Fig. 3 and disengaged from the shank.

The construction heretofore described renders the shoe readily detachable from the drill, and the means for securing the shoe to the shank and drag-bar will add but little to the cost of this part of the machine.

While I have shown the preferred method for locking the rear end of the shoe and the lower end of the shank together, it is obvi ous that in various ways this construction may be modified, and I do not therefore wish to be confined to the details herein shown and described.

Having thus described my invention, 1 claim as new and desire to secure by Letters Patent- 1. The combination, with the grain-drillshoe shank, having a projection or extension at its lower end, of a drag-bar secured to said shank, a shoe having a recess to receive said projection, a part carried by said shoe to en gage said projection and whereby the rear portion of said shoe is supported, and means for detachably securing the forward portion of said shoe to said drag-bar, substantially as described.

2. The combination, with a graindrillshoe shank, and the drag bar connected thereto, of a shoe having an open end to receive the lower end of said shank, a block or part provided on said shoe to fit within a recess in said shank and to be disengaged I against forward movement, a lug 0 provided near the forward end of said shoe, and means for securing said lug to said drag-bar, substantially as described.

In witness whereofl have hereunto set my hand this 25th day of August, 1899.

1 DAVID JACKSON AME. ll In presence of- 1 A. 0. PAUL, M. (J. NOONAN. 

